PlainFlights

ORD vs ROA - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
ORD

Chicago, IL

Chicago, Illinois

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Airport B
ROA

Roanoke, VA

Roanoke, Virginia

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric ORD ROA
On-Time Rate (higher is better) 81.0% 83.2%
Avg Delay (lower is better) 81.9 min 87.3 min
Delay Rate (lower is better) 19.0% 16.8%
Cancellation Rate (lower is better) 1.16% 1.38%
Total Flights 3,114,086 25,454
Delayed Flights 592,111 4,278
Cancelled Flights 36,132 352
Top Delay Cause Late Aircraft Carrier

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

ORD - Chicago, IL

Late Aircraft 39.2%
Carrier 33.6%
NAS 19.5%
Weather 7.7%
Security 0.1%

ROA - Roanoke, VA

Carrier 43.6%
Late Aircraft 33.8%
NAS 16.0%
Weather 6.6%
Security 0.1%

Top Routes

Top routes from ORD

Route Flights On-Time
ORD → LGA
New York
56,539 78.2%
LGA → ORD
Chicago
56,521 80.8%
ORD → LAX
Los Angeles
37,020 79.8%
LAX → ORD
Chicago
36,987 84.3%
ORD → DEN
Denver
35,971 79.3%
DEN → ORD
Chicago
35,925 76.8%

Top routes from ROA

Route Flights On-Time
ATL → ROA
Roanoke
5,601 88.1%
ROA → ATL
Atlanta
5,601 87.9%
ORD → ROA
Roanoke
2,374 79.2%
ROA → ORD
Chicago
2,340 79.1%
ROA → LGA
New York
2,012 80.9%
LGA → ROA
Roanoke
1,983 82.5%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.